Was the increase in culture-confirmed Campylobacter infections in Denmark during the 1990s a surveillance artefact? Emborg, Hanne D and Teunis, Peter and Simonsen, Jacob and Krogfelt, Karen A and Jørgensen, Charlotte S and Takkinen, Johanna and Mølbak, Kåre, Eurosurveillance, 20, 30041 (2015), https://doi.org/10.2807/1560-7917.ES.2015.20.41.30041